牵索铲斗挖掘机 bucket excavator: 半式挖土机; 斗式挖掘机; 斗式挖泥机; 多斗挖掘机; 链斗挖掘机; 抓斗式挖土机excavator bucket: 电铲勺斗; 挖掘机的挖斗; 挖掘机斗; 挖土斗drag bucket: 反铲; 牵斗; 牵引铲斗bucket chain excavator: 铲斗链挖掘机bucket excavator for downward scraping: 下挖式多斗挖土机下载手机词典可随时随地查词查翻译